US Bridges

IH 45 NB & Hov over SH 3 (monroe Rd)

Fair

Harris County, Texas · 2.6 MI SE of IH 610 · Structure no. 121020050003300

Built
1991
34 years old
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
285 ft
1 main span
Daily traffic
81,257
2017 count
Owner
State
State Highway Agency

About this bridge

IH 45 NB & Hov over SH 3 (monroe Rd) is a prestressed concrete stringer/multi-beam or girder carrying IH 45 NB & Hov over SH 3 (monroe Rd) in Harris County, Texas. It was built in 1991, so it is 34 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 81,257 vehicles a day, roughly 7% of them trucks, projected to reach 109,240 by 2033. The structure is 285 ft (86.9 m) long and 95 ft wide.

Location

Open in Google Maps
CarriesIH 45 NB & Hov
CrossesSH 3 (monroe Rd)
Location2.6 MI SE of IH 610
RouteInterstate 45
CountyHarris County
StateTexas
Coordinates29.66924, -95.26225
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length285 ft (86.9 m)
Longest span115 ft (35.1 m)
Deck width95 ft (29 m)
Roadway width91 ft (27.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81,257 (2017)
Projected traffic109,240 by 2033
Trucks7%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 45 NB & Hov over SH 3 (monroe Rd) built?

It was built in 1991, making it 34 years old in 2025.

What condition is IH 45 NB & Hov over SH 3 (monroe Rd) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2022.

How much traffic does IH 45 NB & Hov over SH 3 (monroe Rd) carry?

About 81,257 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is IH 45 NB & Hov over SH 3 (monroe Rd)?

The structure is 285 ft (86.9 m) long with a longest span of 115 ft (35.1 m) and a deck 95 ft wide.

Who owns IH 45 NB & Hov over SH 3 (monroe Rd)?

It is owned by the State Highway Agency.